Camp stove



Dec. 9, 1.924. 1,518,713

. F. A. TROW CAMP STOVE 3 Sheets-Sheet 1 Filed March 20, 922

Ta'uiue A. Trow INVENTOR WITNESSES F. A. TROW CAMP STOVE 3 Sheets-Sheet 2 Filed March 20, 1922 'Favme A. Trow INVENTOR \AHTNESSES I Q ATTORNEY Patented Dec. 9, 1924.

UNITED STATES PATENT OFFICE.

FAVILLE A. TROW, OF ALBERT LEA, MINNESOTA.

CAMP STOVE.

Application filed Starch 20, 1922. Serial No. 545,226.

I and useful Camp Stove, of which the following is a specification.

This invention relates to camp stoves of the knockdown type containing all the necessary elements for cooking meals by tourists traveling in automobiles, some of the parts of the stove being constructed to fold and others to separate, so that the stove may be folded in the form and size of a traveling case no larger than the average suitcase, whereby the parts may be protected against loss or breakage, and when desired for use, the stove may be set up ouicklv'by an unskilled person and fulfill all the requirem'ents of a stove for-cooking, baking and heating purposes. v

A. further object of the invention is to provide the stove with a combination cover and windshield to prevent the wind blowing out the flame from under the kettles, and which will enable the stove to properly function in any kind of weather, giving a clear blueflame in the strongest wind, the windshield also serving as a warming. shelf for the stove when desired.

Further objects of the invention are to provide foldablelegs which.lock in either their open or closed positions; also an enclosed mixing chamber which prevents theflame from being blown out by astrong wind, and also other features which contribute to the production of a superior article for tourists use and tending to make camp lifemore attractive.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawings forming a part of this specification, with the understanding, however, that the invention is not confined to any strict conformity with the showing in the drawings, but may be changed and modified so long as such. changes and modifications mark no material departure from the salient features of the invention as expressed in the appended claims. 7

In the drawings:

Fig. 1 is a perspective view of the camp stove completely folded and packed as a portable unit.

Fig. 2 is a view in perspective of the stove in the first stages of assembling.

Fig. 3 is a view in perspective of the stove. set up, disclosing the method of partially assembling the collapsible oven.

Fi 4 is a front view of the folding stove provided with a windshield.

Fig. 5 is a view in perspective of the stove with the windshield transformed into a warming shelf.

Fig. 6 is a view in perspective of the stove with the oven in the last stages of assemblage. v 4

Fig. 7 is a fragmentary view in detail disclosing one of the U-shaped supporting legs for the stove locked in an inoperative or foldedposition.

, Fig. 8 is a fragmentary view in detail of the-means for locking the leg in the inoperative position.

Fig. 9 is a view of the. same with the leg locked in the operative supporting position. Fig. 10 is a detail view of the block or casting to which each leg is pivoted.

Fig. 11 is a fragmentary sectional view in'detail of the separable connection between the oven rack and the removable sides of the collapsible oven.

' Fig. 12 is a side view, a'rtly in section, showing the casting forming t e manifold and the base of the burners.

Fig. 13 is a fragmentary view in perspective, disclosing a detail of the hinged con- .nection between the burner casing and the on an. inwardly-projecting head 7 located near the upper edge of the front side of the casing.

An outstanding head 8 isformed upon the upper edges of the sides and the ends of the casing 1, the purpose of which will be presently explained.

Burners 9 mounted upon a manifold 10 carried by brackets secured to the bottom I of the casin are supplied with gasoline or a distillate t rough a feed pipe or generator tube 11, having its inner end inserted within an opening of the air inlet 12 and its outer end mounted in the end of a valve casting 11 Figure 4. The casting 11 is rigidly secured on a tank 13 and connects the tank with the feed pipe 11 by means of a passage which is controlled by a needle valve 14 mounted in the casting and adapted to control the flow of fuel from the tank, while an air pump 15 is preferably connected to a screw-threaded nipple 16 at one end of the tank 13 for forcing air therein to maintain the fuel in the tank under pressure. The end 17 'of the'tank is preferably conically formed whereby this end may be used as a funnel for filling the tank.

In Figs. 3 and 12 is shown the construction of the manifold 10 which is formed integral with the bases 10 of the two burners 9. The air intake 12 preferably rises from the manifold at an intermediate point of its length and is curved forwardly for a distance and then extends downwardly in a vertical direction, the downward extension 12 having an open mouth 12", which is substantially flush with the bottom wall of the manifold, and preferably terminates directly over a -inch opening in the bottom of the casing. By this arrangement, the air intake is located.at least 2 inches below the flame, which makes it impossible for'the hot air to get into the mixing chamber. The introduction of hot air would cause the stove to burn with a red'fiame showing incomplete combustion.

A valve stem 18 is mounted in the man!- fold 10 and, as shown, has a slidable handle 19 movable through a slot 20 formed in one end of the casing 1. The handle, when moved through the slot beyond the outer end of the casing, is'adapted to control the burners 9 after the stove has been erected, and .said handle may be moved inwardly within the interior of the casing 1, when the stove is packed for, transportation.

The tank 13 is supported by means of the collar 21 formed integrally with casting 11,

said collar artiall' fillin a ke slot 22 in the end of th y g y e casing when the inner end of the feed pipe 11 is fitted to the air intake 12. '.The collar 21 is flattened at opposite s1des so as to engage the walls of the narrow portion of the slot 22 to hold the feed pipe 11 in its set position. The tank and feed ipe maybe readily removed by raisin t e tank and pipe so that the collar 21 wil be sufliciently elevated to occupy the wide portion of the slot, when the tank and pigs may be drawn' outwardly.

he bottom of the casing is preferably provided with a plurality of perforations 24, as is the hot plate 3, sothat the air may pass up into the casing and supply the burners with a sufficient amount of air.

The'casing is supported preferably by means of U-shaped legs 25, which at their upper free ends are provided'with inturned arms 26 inserted through an axial perforation in a block or casting 27 removably mounted in openings'at each of the four corners of the bottom of the casing vl.

I prefer to provide the stove with a swinging plate 33 that may constitute the main element of a windshield for the burners, and which may be folded into the stove casing above the burners when not in use. This plate may also when desired'form a shelf alongside the casing.

The plate 33 is preferably bordered by a bead which is provided with wire stiffeners 68 located within the vertical portions of the bead. The lower ends of the wires project below the lower edge of the windshield and are bent to form eyes 69 shown in Fig. 13, which receive the wire stiffener passing through the head 8 formedon the upper edge of the casing 1 whereby the plate is hingedly. mounted on the upper edge of the rear side member of the casing 1. The plate 33 has connected to its ends swinging end plates 34 and 35, adapted to be folded against either side of the plate 33, (preferably against the under side as shown in Figure 2), and the three plates may then be turned together into the upper part of the casing above the burners, and above the plate 3 when said plate is employed. The pivotal mounting for the end plates 34 and 35 preferably comprises straps 36 secured in spaced relation to the inner sides of the said end plates, and provided with cylindrical eyes 37 through which the wire stiffener 68 is passed, whereby said wire forms a hinge pin of the pivotal mounting for the end plates. The/eyes 37 operate in slots near the side edges of the plate 33. The lower edges 39 of the end plates 34 and 35 are adapted to extend across the ends of the hot plate 3 and rest upon and be held in position by the bead 8 on the upper edge of the caslng 1, as shown in Fig. 3. en it is desired. to protect the burners from wind, the plate 33 may be turned into anupright position as shown in Figure 3, carrying the end plates 34 and 35 with it, and one or both of the end plates may be turned' into positionto have itslower end rest upon the head 8 on the upper edge of the wallof the casing, or on the top of the plate 3. By this means the burners will be thoroughly protected from the wind permitting the stove to be conveniently used in the open air, even when the wind is blowing.

I may also provide the stove with an oven rack 40 which preferably comprises a wire frame and a depending bafile plate 41 arranged below the rack. The baflle 41 may be made of sheet metal lined with asbestos with its opposite longitudinal edges curled to form eyes through which are inserted the rods 42 having their outer ends, which project beyond the plate 41, bent upwardly and provided with eyes engaging certain of the wires of the rack 40 whereby the baflle 41 is loosely suspended from the rack. By reason of the fact that the rods 42 are suspended on certain of the wires of the rack 41 and are journaled in the eyes provided on the longitudinal side edges of the bafiie 41, the latter may be swung in such a man-- her that it will lie flat on the rack 40 when in folded position.

As shown in Fig. 4, the rack 40 may be supported upon the upper edges of the wind shield, in order that cooking utensils may be placed thereon for keeping food warm. In this position, the windshield and rack constitute a warming shelf.

When the wind is not sufiicient to disturb the operation of the burners 9, the plate 33 may be revolved on its pivotal connection with the casing 1 and placed in a horizontal position alongside the stove, as shown in Fig. 5. Since the plates 34 and 35 have a universal pivotal connection with the plate 33, they may be rotated and placed in a vertical position, the'lower edges resting on the ground, whereb the plate 33 is so support ed as to provi e a warming shelf for the stove.

When it is desired to use the stove for baking or roasting, the plate 33 may be placed in a vertical position, with the end plates 34 and 35 located in the position.

shown in' Fi 3, which illustrates the first step in assem ling the collapsible oven. The

lower edge 39 of the end plate 34 rests on the hot plate 3 and in engagement with the bead 8 of the casing 1. The rack 40 is provided with downwardly-projecting hook" members 44, and 46. The hook member 44 is adapted to engage in a socket 47 which is. cut and punched out substantially centrally of the wing 34 (Fig. 11), while SlIIlllar sockets are cut and unched out near one side edge of the winds ield 3.3 and-the removable side member 48 of the oven, so that the rack 40 willhave a-three-point suspension within the oven, and means are also provided for retaining the wing 34, the windshield 33 and the removable side member 48 in operative position.

The removable: side member 48 has a base portion 49, and inturned side flanges 50 which are cut awa at 51, thereby leaving spaces through which. certain parts of the oven are adapted to be positioned to further aid in holding. the

parts of the oven together. iThe removable side member 48'is placedvertically,.with the inturned flange 50 on its lower edge seated upon the hot plate 3 within thebead 8 of the casing 1, and the side edge 52 of the wing 34 received within the flange of the removable side member 48, and having the end at the corners as shown The flange 50 of the side member embracing the outer face of the wing 34. The hook 45 of the rack 40 is adapted to engage the socket 47 on the removable 'side member 48 and maintain the latter in position likewise sup porting that end of the rack.

A top cover 53 is adapted to be positioned upon the upper edges of the windshield 33, t

or beading 38 of the windshield 33 and the swingable wing 35, the latter forming a door for the front end of the oven, and being offset at the top as shown at 56, in order that the door may fit neatly about the flange 55 to properly close the front of the oven; A latch 57 turned by the external handle 58 may be moved behind a flange on the front end of the removable side member 48 to lock the wing or door 35 in closed position. P

A coo vided with a foldable handle 61 which may be folded to lie flat upon the bottom of the pan when the pan is packed for shipment. A latch member 62, which is pivotally mounted at 63 on the outside of the windshield locked on the casing 1, and the entire outfit retainedin its closed position.

In order to disassemble the folding stove and fold and pack'the same in a 'neat compact unit, as disclosed in Fig. 1, the top 'cover 53 of the oven is removed as well as ing pan 60, shown in Fig. 5, is pro-1 the removable side member 48 after-the lug V 45 on the rack 40 has been released from the socket 47 in said side member. The rack 40 is then removed entirely from the remainder of the oven by releasing-the lugs 44 and 46 from their respective sockets, when the bafile41 may be swun into a position so that it will lie flat agalnst the rack 40 and placed within the cover 53 of the oven. The

removable side -member 48 is of slightly smaller dimensions than the cover 53, and

the same may be placed within'the cover by tilting it slightly and shoving the same beneath lugs 66 which project inwardly from the opposite Y flanged ends of 1 said cover. lugs' 66 have a further object besides maintaining the removable side member 48 within the top cover 53, and that is to engage perforations 67 formed in the ends of the casin 1 for locking the cover 53 upon the base o the casing 1, after the legs 25 have been folded upon the base of said casing, it is only necessary to shove the casing 1 into the cover 53,*when' the flanged sides of the cover 53 will spring apart to permit the lugs 66 to drop into the openings 67 in the casing 1 and thereby lock the two parts together.

The tank 13 is removed by elevating the tank about half an inch to permit .the key or collar 21 to pass through the enlarged upper portion of the slot 22 and then by taking hold of the tank withdrawing the feed pipe 11 outwardly through said opening in the end of the casing 1. The tank 13 is then placed within the casing 1, longitudinally alongside of the manifold 10, with the feed pipe 11 resting upon the top of the manifold. Pan 60, such as shown in Fig. 5, with .thehandle 61 folded snugly against the bottom of the pan, may be placed within the casing and over the manifold 10 and the burners 9. Any other necessary culinary implements may be placed within the casing.

' The hot plate 3 is positionedwith its outer longitudinal free edge resting on. the

flange 7.

The windshield 33 being pivotally mountev ed on the casing 1 is not removable, and 'when the wings 34 and 35 are placed in folded position upon the windshield 33, and in overlapping position with each other, the windshield with the wings may be revolved so that it will rest neatly upon the hot plate 3 and substantially flush with the upper edge of the bead 8 of the casing 1. The latch 62 may be snapped in place so that the bent portion 65 of the latch will engage the bead 8 of the casing 1 and thereby lock the windshield on the casing. It will be seen 3 that .a very neat, compact and convenient erative relation with pivotally unit .is formed as shown in Fig. 1, resembling in appearance an ordinary suitcase with the handle 2 adapted for carrying purposes.

When the stove is in folded position the operating handle 19 for the valve which controls the fuel burner 9 should be shoved throu h the slot 20 and into the casing 1, where liy the handle will be out of the way.

In practical operation, only the first burner, the one nearest to the .tank, requires generating. The other may be turned on or oil the same as a gas stove by means of the valve controlled by the handle 19.

What is claimed is 1. In a folding'stove, a casing, a hot plate, a combined 'windshield and warming shelf mounted on the casing and provided with foldable wings adapted to support the windshield vertically on the casing, said windshield adapted to be swung to one side and positioned horizontally with the wings forming supporting legs for the warming shelf, removable side and top members adapted to be positioned in'coopthe wings of the wind shield to form an oven, said wings foldable in overlapping relation upon the windshield, said windshield and wings foldable on the hot plate, means for locking the folded windshield upon the hot plate, said removable side member adapted to be positioned within the removable top member and said top member adapted'to engage thebottom of the casing and enclose the foldable' legs,

and means on the casing and the removable hingedly connected together and hingedly mounted at the top of the casing, said members being foldable one upon the other and upon the top of the casing when not in use, a removable side member for the oven, and a removable top member, the removable side member being enclosed within the removable cover member when not in use, means for holding the removable side member within the removable cover member and for confining the two in such position against the underside of the burner casing and against the folded legs thereof, and means for holding the hinged members of the oven in their folded position. v

3. The combination, in. a folding stove, with a rectangular open top casing having a plurality of burner elements fixedly arranged therein with the tops of the burners below the upper edges .of the casing walls, a swinging plate hingedly connected to one of. the sde walls of the casing and arranged to be folded into said casing above said burners, or to be turned into an upright position forming an extension of the side walls of the casing to which it is connected, or to be turned outward into a horizontal position to form a shelf, end plates hing- I to form with said plate a windshield for the burners when in a vertical position, and to be folded, with said plate, into said casng above said burners. I

4. The combination, in a folding stove, with a rectangular open top casing having a plurality of burner elements fixedly arranged therein, w th the tops of the burners below the upper edges of the casing walls, a liquid-fuel vaporizer connected with said burners, and a fuel reservoir arranged outside of the casing and connected with said vaporizer and burners, of a utensil-supporting plate, provided with openings, arranged in said casing above said burners, a swinging plate hingedly connected to one of the side walls of the casing, and arranged to be folded into said casing above said burners and above said utensil-supporting plate, or to be turned into an upright position forming an extension ofthe side wall of the casing to which it is connected, end plates hingedly connectedto the ends of the swinging late, and arranged to be folded, with said p ates, into said casing, and arranged to be turned, with said plate, into an upright position, and to extend when in such uprlghtosition, across the ends of the casing, said p ate and said end plates when in an upright position forming a windshield for said burners.

5. The combination, in a folding stove, with a rectangular open top casing having a plurality 0 burner elements fixedly arranged therein with the tops of the burners below the upper edges of the casing walls, a liquid-fuel vaporizer connected with said burners, and a fuel reservoir arranged outside of the casing and connected with said vaporizer and burners, of a plurality of swinging plates hingedly connected to one of the side walls of the casin and both arranged to be folded into sai casing, the inner plate having openings over the tops of wings and plate being normally su portthe burners and the outer plate being adapted to be turned into an upright position forming an extension of the side walls of the casing to which it is connected, end

plates hingedly connected to the ends of said outer plate, and arranged to be folded with said outer plate into said casing, or to be turned with said outer plate into an upright position, and to extend, when in said upright position, across the ends of the casing, said outer plate and said end plates, when in their upri t positions, forming a windshield for said. urners.

6. In a foldable stove, the combination w'th a c'asin provided with burners, of a plate pivotal y mounted on the casing and provided with a plurality of wings, the

ed above the casing and foldable to orm a wind shield or oven, an oven rack provided with means to hold the plate and wings in a rigid upright structure above the easing, said oven rack being detachable and said plate with its wings being movable awayfrom the casing to a horizontal position to serve as a warming shelf, the wings be ng foldable to'a position below the plate and .then acting as supports for the shelf.

7. In a folding stove, a casing, a'hot late mounted on the top of the casing, fol able legs for the casing having means for locking the legs in an operative position for supporting the casingand also means for retaining the legs in folded positlon against the under side of the casing, a plate pivotally mounted at the up er end of the casing and provided with fol able wings, a detachable top and side which with the plate and wings may .form an enclosed oven, said plate and wings being foldable down over the hot plate when the stove is not in use, said top and sides being adapted to fit under the easin and a inst the le s when the stove is folded. ga a 8. In a folding stove, a casing, a burner mounted at the top of the casing, a collapsible oven mounted in the casing comprising a plate pivotally mounted on one side of the casing and provided with pivoted wings, a

removable side member adapted to be engaged by one of the wings and a top member having a flange adapted to embrace the upper edge of said plate, one wing, and

the side member, the other wing serving as an oven door.

-' 9. In a folding stove, a casing a burner mounted in the casing, legs mounted on the bottom of the casing for supporting said casing in an elevated position when the stove is in use and foldable against the casing when not in use, a foldable" wind shield hav-, ing three sides hinged to each other above the casing, a detachable top late and a side member, the wind shield'belng foldable to fit over the top side of the casing, and a top plate being adapted to fit over the bottom side of the casing when the legs are in folded position.

10. In a folding stove the combination with a traveling casing of a collapsible oven comprising awind shield with a pair of hinged'wings pivotally mounted to the casing and forming three sides of the oven, a removable side member forming the fourthv side and a removable flanged to member,

the wind shield being foldable to orm a side,

of the folded stove, the flange of the top member being adapted to embrace the other side of the casing, said top forming another side of the folded stove.

11. In a folding stove, a casing, a plate hinged to the upper side of the casing, wings hinged to the plate, a side member having a flange, a top plate having a flange to em- 12. A camp stove, including a casing, hav-.

brace said plate, one wing and the side ing an open side to receive a burner and a fuel tank, a permanently hinged cover to close said open side and to swing horizontally backwardly and. win hinged to the ends .of said cover and ag apted to swing towards and from each other and past the plane of the cover in-both directions and to lie in one position flat against the inner side ,of the cover, in another position to constitute, with the cover, a wind shield,

and in a third position to constitute supports for the cover.

13. A camp stove, including a casing,having an open side tovreceive a burner and a fuel tank, a cover hinged to one wall of said casing to close said open side, and wings hinged to'the ends of said cover to swing past the plane of the cover and constitute, with the cover in one position, a wind shield above said casing and in another position a support for the cover to constitute the {latter asa table or support.

14. A camp stove, including a casing, comprising a major portion having an open side to receive a burner and a fuel tank, a cover to close said open side and wings hinged to theends of said cover to constitute, with the cover, in one position a wind shield for the burner, and in another position to constitute supports to hold the cover in substantially horizontal position.

15. A camp stove, including a casing, comprising a major portion having an open side to receive a burner and a fuel tank, a cover permanently hinged to one wall of said major casing portion to close said open side and to swing through an arc of 180 degrees, and wings hinged to the opposite ends of said cover to swing fiat against the inner face of said cover, and also to swing backwardly beyond the plane of the cover to constitute supports to hold the cover in horizontal position to serve as a table.

In testimony, that I claim the foregoing as my own, I have hereto afiixed my signature.

FAVILLE A. TROW. 

